package chp02.ext;

public class Ext2 {

    public static void main(String[] args) {

        //byte的取值范围 -128~127
        byte byebye = -128;

        char charchar = 'a';
        byebye = (byte) charchar;
        System.out.println(charchar);
        System.out.println(byebye);
    }
}
